Siliconates & Specialty Auxiliaries
Sodium Methyl Siliconate Solution | Manta MSES
Manta MSES is a water-reducible sodium methyl siliconate concentrate (CAS 16589-43-8) used for integral and dip-treatment waterproofing of fired bricks, roofing tiles, aerated concrete and gypsum, for anti-penetration protection of heavy civil structures, and in oilfield drilling fluids. It reacts with carbon dioxide to form an insoluble siloxane matrix in capillary pores.
- Grade
- MSES
- Chemical Name
- Sodium methyl siliconate
- CAS No.
- 16589-43-8
- EINECS
- 240-648-3
- Formula
- CH3Na3O3Si
- Synonyms
- Methylsilanetriol sodium salt
- Form
- Colorless or light yellow transparent liquid
Overview
Manta MSES is a water-reducible sodium methyl siliconate concentrate that provides hydrophobicity and moisture protection on a wide range of porous mineral surfaces. By reacting with ambient carbon dioxide and surface hydroxyl groups, the active siliconate forms a resilient, insoluble siloxane matrix within the substrate's capillary pathways, significantly reducing capillary water uptake while retaining vapor permeability.
Supplied as a strongly alkaline aqueous formulation, MSES is diluted with water for mass-scale integral treatment of building materials, heavy civil engineering structures and oilfield applications. It is a water-based, zero-VOC formulation, and its alkalinity has a passivating effect within the concrete matrix that helps to protect reinforcing steel from corrosion.
For decorative stone and brick, the potassium-based Manta MSEP is recommended, because over-application of a sodium siliconate on dark or highly decorative surfaces may leave a white carbonate residue. MSES suits factory-line treatment and large-scale civil projects. For dry-mix formulations, sodium methyl siliconate is also available as a powder, Manta WR-P02.
Key Features
- Significantly reduces capillary water absorption
- Retains the vapor permeability of the substrate
- Water-based, zero-VOC formulation
- Cost-effective for large-scale industrial and civil projects
- Alkaline passivating effect that helps to protect rebar from corrosion
- Diluted with water for integral or dip treatment
Cross-Reference
Manta MSES can be considered as an alternative to Dow XIAMETER OFS-0772 Siliconate.
Trademarks are the property of their respective owners; no affiliation is implied.
Specifications
| Property | Typical Value |
|---|---|
| Appearance | Colorless or light yellow transparent liquid |
| Solid Content | 30% ± 2% |
| Viscosity (25°C, mm²/s) | 8-15 |
| Specific Gravity (25 °C) | 1.10 - 1.30 |
| pH Value | ≥13 |
| Silsesquioxane Content% (m/m) | ≥12 |
| Alkali Content% (m/m) | 5-10 |
| Flammability | Non-flammable |
Typical values from the current Technical Data Sheet.
Applications
- Industrial dip treatment and construction materials: factory-line waterproofing of fired clay bricks and roofing tiles, and integral mixing or dip treatment of autoclaved aerated concrete (AAC) blocks, perlite boards and gypsum board as a hydrophobic additive
- Civil engineering and water containment: anti-penetration protection of reinforced concrete in underground infrastructure, tunnels, dams and sewage treatment tanks, reducing water erosion and freeze-thaw degradation
- Oil and gas: shale inhibitor and fluid loss additive that adjusts drilling mud viscosity and helps to stabilize shale and limit wellbore collapse; also used in enhanced oil recovery to maintain the integrity of the reservoir rock skeleton
- Architectural surface waterproofing: breathable sealer for exterior walls and basements
Related applications: Concrete, Masonry & Stone Protection · Liquid Waterproofing & Construction
Packaging & Storage
Supplied in 50 kg, 250 kg drum, 1350 kg IBC.
Safety and Storage
Store in a cool, dry place and avoid direct sunlight. Keep containers tightly closed, as the product reacts with atmospheric carbon dioxide. Shelf life is 12 months from the date of production when stored at or below 35°C in the original unopened containers. The liquid is highly alkaline; avoid contact with skin and eyes and read the Safety Data Sheet before handling.
Documents
- Technical Data Sheet · PDF Download TDS
- SDS and COA · on request Request Documents
Frequently Asked Questions
Where is Manta MSES most cost-effective to use?
In factory-line mass production and large projects: integral mixing or dip treatment of fired clay bricks, roofing tiles, autoclaved aerated concrete (AAC), gypsum and perlite boards, and anti-penetration protection of large civil structures such as tunnels, dams and sewage treatment tanks.
When should I switch from Manta MSES to Manta MSEP?
On dark or highly decorative surfaces, over-application of the sodium-based MSES may leave a white carbonate residue. For decorative stone and brick, the potassium siliconate Manta MSEP is recommended instead.
Does Manta MSES have oilfield applications?
Yes. It acts as a shale inhibitor and fluid loss additive in drilling muds, adjusting viscosity to stabilize shale and help to limit wellbore collapse, and it is used in enhanced oil recovery to maintain the integrity of the reservoir rock skeleton.
Is there a minimum order quantity for Manta MSES?
There is no fixed minimum order quantity; quantities are agreed case by case. It is supplied in 50 kg, 250 kg drum, 1350 kg IBC. Samples are charged. The sample fee includes courier delivery and is deducted from your first formal order. Use Request a Sample to test it on your own substrate.
Related Products
MSES is one step in the building protection formulation chain. One inquiry can cover the other raw materials in your formulation, with samples, technical documents, quotation and shipment handled together.
- Alkyl Silane Actives
- Emulsions & Pastes
- Siliconate Liquids & Powders
- Waterproof Coatings
Looking for a different purity, functional group, or a structure not listed here? Contact our technical team.
Talk to our technical team
Tell us your application, target properties and estimated quantity. We will suggest grades and arrange documents or samples.